Digital broadcast receiver and backup method

ABSTRACT

A digital broadcast receiver capable of relieving user&#39;s time and labor in backing up the contents recorded on a recording medium to another recording medium. A digital broadcast receiver ( 100 ) extracts the contents recorded, out of order, on a first recording medium ( 200 ) by extracting means ( 100   a ) according to the titles or genres recorded in a content list ( 200   a ), and automatically rearranges extracted contents by arranging means ( 100   b ) according to video-recording date-and-hour recorded in the content list ( 200   a ), for recording as a content list ( 300   a ) onto a second recording medium ( 300 ).

TECHNICAL FIELD

[0001] The present invention relates to a digital broadcast receiver for receiving a digital broadcast and a backup method for backing up a content recorded on a recording medium to another recording medium.

BACKGROUND ART

[0002] Amid the advancement of television broadcast digitalization including Japanese terrestrial broadcast digitalization targeted at 2003, there are recent advents of hard disk audio/video recording apparatuses (AVHDD), digital video recorders (D-VHS) and the like, to record digital broadcasts. These apparatuses are connectable with a digital broadcast receiver by an IEEE1394 (Institute of Electrical and Electronics Engineers 1394) terminal, which can record the digital broadcast received by a digital broadcast receiver.

[0003] Meanwhile, there is a recent advent of a digital broadcast receiver incorporating an AVHDD for video recording. Generally, the AVDHH temporarily stores contents and thereafter backs up a user-selected content onto a D-VHS digital videotape.

[0004] However, in the above method, manual operation must be made in order to back up related ones of recorded contents, making it difficult to find out a related recorded content. Also, in the case that the capacity of a recording medium reaches a limit in the course of backup, backup is ended at that time.

[0005] The present invention has been made in view of such points, and it is an object to provide a digital broadcast receiver capable of automatically backing up related ones of recorded contents.

[0006] Also, another object of the invention is to provide a backup method capable of automatically backing up related contents.

DISCLOSURE OF THE INVENTION

[0007] The present invention provides, in order to solve the above problem, in a digital broadcast receiver for receiving a digital broadcast, a digital broadcast receiver characterized by comprising: extracting means for automatically extracting a plurality of contents recorded, out of order, on a recording medium by a first attribute of the contents; and arranging means for automatically rearranging contents extracted by the extracting means according to a second attribute of extracted contents, for recording onto a second recording medium.

[0008] Herein, the digital broadcast receiver of the invention has the extracting means and the arranging means, to automatically arranges, with relations, the contents recorded out of order on the recording medium, for recording onto another recording medium.

[0009] Meanwhile, there is provided in a backup method for backing up contents recorded on a first recording medium onto a second recording medium, a backup method characterized by: automatically extracting contents recorded, out of order, on the first recording medium according to a first attribute of the contents; and automatically rearranging extracted contents according to a second attribute of the extracted contents, for recording onto a second recording medium.

[0010] Herein, the contents recorded on the first recording medium are extracted, according to the first attribute, of related contents which are rearranged according to the second attribute and backed up onto a second recording medium, whereby related contents are automatically backed up to another recording medium.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011]FIG. 1 is a principle diagram showing a principle of the present invention.

[0012]FIG. 2 is a block diagram showing a digital broadcast receiver of the invention and its peripheral units.

[0013]FIG. 3 is a flowchart showing a backup method.

[0014]FIG. 4 is an example of a screen to be displayed on a display of a digital television set when moved to a backup mode.

[0015]FIG. 5 is an example of displaying a list of the contents recorded on an AVHDD, on the display of the digital television set.

[0016]FIG. 6 is an example of a screen to be displayed on the display of the digital television set when selecting a classification of contents.

[0017]FIG. 7 is an example of a screen to be displayed on the display of the digital television set when selecting a backup destination.

[0018]FIG. 8 is a figure showing a manner that contents have been extracted on title from a content list recorded in the AVDHH shown in FIG. 4 and backed up to a D-VHS.

[0019]FIG. 9 is an example of displaying a fact that the tape remaining amount of a D-VHS digital tape is deficient, on the display of the digital television set.

[0020]FIG. 10 is a figure showing a manner of backing up the contents recorded on AVHDD and D-VHS digital video tapes to another D-VHS digital video tape.

BEST MODE FOR CARRYING OUT THE INVENTION

[0021] Hereunder, an embodiment of the present invention will be explained with reference to the drawings.

[0022]FIG. 1 is a principle diagram of the invention.

[0023] A digital broadcast receiver 100 of the invention comprises extracting means 100 a for automatically extracting the contents recorded, out of order, in a first recording medium 200 by the titles or genres recorded in a content list 200 a, and arranging means 100 b for automatically rearranging the extracted contents according to the video-recording date-and-hour recorded in the content list 200 a and recording as a content list 300 a to a second recording medium 300.

[0024] By the configuration as in the above, the digital broadcast receiver 100 of the invention can extract, by the extracting means 100 a, the contents recorded, out of order, in the first recording medium 200 on the basis of each title or genre recorded in the content list 200 a, and automatically rearrange, by the arranging means 100 b, the extracted contents according to the recording date-and-time recorded in the content list 200 a and automatically record as a content list 300 a to the second recording medium 300.

[0025] Next, a concrete embodiment of the invention is explained.

[0026]FIG. 2 is a block diagram showing a digital broadcast receiver of an embodiment of the invention and its peripheral unit.

[0027] A digital broadcast receiver 10 of the embodiment of the invention comprises a front end 10 b connected to an external antenna 20 and including a not-shown tuner and the like, a back end 10 d connected to the front end 10 b and including a not-shown decoder or the like to have a function to output a video signal and audio signal to a digital television set (not shown), an AVHDD 10 c as an integration-type hard disk drive connected to a data line between the front end 10 b and the back end 10 d, a remote-control light-receiving section 10 e for receiving a signal from a remote-control transmitter 40, and a CPU (Central Processing Unit) 10 a connected, through a bus 10 f, to the front end 10 b, the back end 10 d, the AVHDD 10 c and the remote-control light-receiving section 10 e.

[0028] The output of the digital broadcast receiver 10 is supplied to a not-shown digital television set, where a required image is displayed on its display.

[0029] Meanwhile, at the outside of the digital broadcast receiver 10, there are two digital videos D-VHS 30 a and D-VHS 30 b connected in a daisy-chain type through a signal line, e.g. of IEEE1394 format, to take out and record the digital broadcast data existing in a transport stream form between the front end 10 b and the back end 10 d.

[0030] By making such a configuration, the CPU 10 a recognizes a title, genre and video-recording date-and-hour of a content recorded in the recording medium of the D-VHS 30 a, 30 b connected via the AVHDD 10 c and IEEE1394 terminal by an application program stored in a not-shown ROM (Read Only Memory). Furthermore, such operations are made possible that, for example, reference is made to a genre to automatically take a drama out among the contents recorded, out of order, in the AVHDD 10 c and arrange and backup it in a video-recording date-and-hour order to a digital videotape of the D-VHS 30 a.

[0031] Incidentally, although, in the above explanation, the connection forms of the recording units based on the AVHDD 10 c and D-VHS 30 a, 30 b are of the daisy-chain type, various connection forms may be taken including a star type, tree type and the like. Meanwhile, there is no limitation in respect of connection length and connection count.

[0032] Hereunder, a method of backup is explained.

[0033]FIG. 3 is a flowchart showing a method of backup. Incidentally, S1, S2, . . . in FIG. 3 show process step numbers.

[0034] Explanation is made, below, on each of steps separately.

[0035] S1: selecting a backup source.

[0036] The user notifies the digital broadcast receiver 10 of a move to a backup mode, by using the remote-control transmitter 40 for example.

[0037]FIG. 4 is a screen example to be displayed, at that time, on a display of the digital television set. On the display, displayed are AVHDD 10 c built in the digital broadcast receiver 10, and “AVHDD”, “D-VHS(1)” and “DVHS(2)” as machine names of the D-VHS 30 a, 30 b connected by the IEE1394.

[0038] Also, displayed is a list button to list-display the titles of the contents recorded in the respective recording mediums. Next, a cursor (underline) is moved by using the remote control 40, to select of which recording medium a content is to be backed up. Furthermore, the list button is selected to instruct for list display.

[0039] Herein, explanation is made on an example of a process within the digital broadcast receiver 10 to be executed in step S1, with reference to FIG. 2.

[0040] In case the user operates the remote control transmitter 40 to send a signal for moving to a backup mode, the CPU 10 a recognizes the AVHDD 10 c as an incorporated hard disk and the D-VHS 30 a and D-VHS 30 b connected by the IEE1394 from a signal received through the remote-control light-receiving section 10 e on the basis of an application program stored in a not-shown ROM or the like, and, at the same time, recognizes the content recorded in the AVHDD 10 c and the content recorded in the D-VHS 30 a and D-VHS 30 b. A recognition result is added to a content now under reproduction by the back end 10 d and outputted onto the digital television set as in FIG. 4.

[0041] The CPU 10 a receives a signal through the remote-control light-receiving section 10 e each time the user uses the remote-control transmitter 40, and carries out a predetermined operation according to an application program depending upon an input by the user, to output a result thereof onto the not-shown digital television set through the back end 10 d. This operation is similar also in the below step, and hence omitted.

[0042] S2: displaying a video-record list recorded.

[0043] Herein, the list of contents recorded in the recording medium at the backup source designated in step S1 is displayed on the display of the digital television set.

[0044]FIG. 5 is an example displaying the list of contents recorded in the AVHDD 10 c on the display of the digital television set. As in the figure, there are displayed titles, genres, video-recording date-and-hour in the list. Such a list has been recorded as a content list on each recording medium.

[0045] Meanwhile, on the digital-television screen shown in FIG. 5, there are displayed the buttons of “Delete” and “Backup”, for example. The user, if selecting “Delete” by the remote-control transmitter 40, is allowed to select and delete, for example, a content to be deleted in the list. Selecting “Backup” proceeds to step S3.

[0046] S3: selecting an attribute for content extraction.

[0047]FIG. 6 is an example of a screen to be displayed on the digital-television display when the user selects “Backup” in step S2. Herein, the user determines which attribute of title or genre the content is to be classified and extracted, and makes a selection by the remote-control transmitter 40. In FIG. 6, “Classify by Title” is selected.

[0048] In the case of selecting title, as shown in FIG. 6, the user then inputs a title name by the remote-control transmitter 40. The CPU 10 a searches through the content list of the recording medium selected in step S1 and extracts a content meeting the title name.

[0049] Meanwhile, in the case of selecting genre, then the user selects a genre name, such as sport, drama or animation, by the remote-control transmitter 40. The CPU 10 a searches through a content list of the recording medium selected in step S1 according to a selected genre name, and extracts a content meeting the genre name.

[0050] The information of the extracted content is temporarily stored to a recording unit such as a not-shown RAM, in preparatory for backup.

[0051] S4: selecting a backup destination.

[0052]FIG. 7 shows an example of a screen to be displayed on a digital television display when selecting a backup destination. As in the figure, there is shown a machine name of the AVHDD 10 c or the D-VHS 30 a, 30 b, so that the user selects any one by the remote-control transmitter 40.

[0053] S5: examining for an available disk capacity of the backup destination.

[0054] The CPU 10 a examines for an available disk capacity of a recording medium as a backup destination selected in step S4. In case the available disk capacity is sufficient, step S6 is proceeded to, while, in case deficient, step S7 is proceeded to.

[0055] S6: executing backup.

[0056] Because, in step S5, the backup destination the user has designated is sufficient in available disk capacity, the content extracted from the backup-destination recording medium selected in step S1 by the attribute selected in step S3 is automatically recorded in a video-recording date-and-hour order onto the backup-destination recording medium designated in step S4, thus ending the backup operation.

[0057]FIG. 8 is a diagram showing a manner at a time that a content is extracted by title from the content list recorded on the AVHDD 10 c shown in FIG. 5 and backed up to the D-VHS 30 a. In the case that a title is selected as attribute in step S3 to input “AB” for example, the content meeting the title is automatically arranged in a video-recording date-and-hour order to the backup-destination recording medium designated in step S4, herein D-VHS 30 a, thus being recorded as in the figure.

[0058] S7: displaying an alarm.

[0059] Because the backup-destination recording medium designated by the user in step S5 was confirmed insufficient in available disk capacity, an indication of that fact is displayed on the digital television display.

[0060]FIG. 9 is an example that the fact a digital tape of the D-VHS 30 a is insufficient in tape remaining amount is displayed on the digital television display. In the figure, the process to be next done is shown four simultaneously with an alarm text.

[0061] S8: selecting the next process.

[0062] The user selects any one among, for example, the four processes shown in FIG. 9.

[0063] For example, in the case of selecting another apparatus (S8 a), step S5 is again returned to, to examine for an available disk capacity of a unit the user has selected.

[0064] In the case of selecting to continue backup (S8 b), there is a possibility that the disk capacity run out in the course of backup. However, backup operation is continued as it is, to end the process at a time the disk capacity runs out.

[0065] At this time, an error message may be displayed.

[0066] In the case that selection is to format and execute backup (S8 c), the recording medium designated in step S4 is formatted to execute backup, and thereafter the process is ended.

[0067] In the case of selecting to suspend backup (S8 d), backup operation is suspended to end the process.

[0068] As described above, by automatically extracting and rearranging the contents according to a content attribute recorded in a recording medium, the user is released from the troublesomeness of manual operation and allowed to back up, in a brief time, a content of a genre or title he or she seeks, in a recording date-and-hour order, onto another recording medium.

[0069] Incidentally, the above explained with one backup-destination recording medium, this is not limited to.

[0070]FIG. 10 is a diagram showing a manner that the contents recorded on two recording mediums, or digital videotapes of the AVHDD 10 c and D-VHS 30 a, are backed up to one recording medium, or a digital video tape of the D-VHS 30 b. For example, dramas can be extracted from the contents recorded on the AVHDD 10 c and D-VHS 30 a and backed up to in a video-recording date-and-hour order onto the D-VHS 30 b.

[0071] Meanwhile, although, in the above explanation, a backup-destination recording medium was selected by the user, selection may be made automatically. On this occasion, the digital broadcast receiver examines for a content capacity an available storage capacity of a recording medium for backup, and selects an optimal destination of backup.

[0072] Meanwhile, although, in the above explanation, the digital broadcast receiver controls backup operation and instructs an backup operation to another recording medium, the unit other than the digital broadcast receiver, such as the AVHDD or D-VHS, may control backup operation to operate the other unit or recording medium.

[0073] As explained in the above, in the present invention, the digital broadcast receiver has means that recognizes a content attribute recorded on a recording medium, and automatically extracts and rearranges the contents recorded, out of order, in the recording medium according to the attribute thereby backing up them to another recording medium. Accordingly, the user is allowed to carry out backup with reduced time and labor.

[0074] Meanwhile, in the method of backup in the invention, because contents are automatically extracted and rearranged according to a content attribute recorded on a recording medium and backed up to another recording medium, the user is released from the troublesomeness of manual operation and the user can carry out backup with reduced time and labor. 

1. In a digital broadcast receiver for receiving a digital broadcast, a digital broadcast receiver characterized by comprising: extracting means for automatically extracting a plurality of contents recorded, out of order, on a recording medium by a first attribute of the contents; and arranging means for automatically rearranging contents extracted by the extracting means according to a second attribute of extracted contents, for recording onto a second recording medium.
 2. A digital broadcast receiver according to claim 1, wherein the first attribute is genre or title of the contents.
 3. A digital broadcast receiver according to claim 1, wherein the second attribute is recording date-and-time of the contents.
 4. A digital broadcast receiver according to claim 1, wherein any one or both of the recording mediums is a hard disk.
 5. A digital broadcast receiver according to claim 1, wherein any one or both of the recording mediums is a digital videotape.
 6. In a backup method for backing up contents recorded on a first recording medium onto a second recording medium, a backup method characterized by: automatically extracting contents recorded, out of order, on the first recording medium according to a first attribute of the contents; and automatically rearranging extracted contents according to a second attribute of the extracted contents, for recording onto a second recording medium.
 7. A backup method according to claim 6, wherein the contents recorded on a plurality of recording mediums are extracted according to the first attribute, rearranged according to the second attribute and recorded onto one of the two recording mediums.
 8. A backup method according to claim 6, wherein, during recording the contents onto the second recording medium, in the case that the storage capacity of the second recording medium reaches a limit, selected ones of the contents are recorded onto a third recording medium.
 9. A backup method according to claim 6, wherein the first attribute is genre or title of the contents.
 10. A backup method according to claim 6, wherein the second attribute is recording date-and-hour that the contents have been recorded. 